Stenographic type-writing machine



8 Sheets-Sheet 2.

(No Model.)

BL. ORAIGMILES. STEN OGRAPHIG TYP-B WRITING MACHINE.

STENOGRAPHIC TYPE WRITING- MACHINE. No. 496,297.

Patellted Apr. 25, 1893,

Rhine/004w m: Nbnms virus 00., Pnmmumo. wnsmuawu. u c.

(No Model.) 8 Sheets-Sheet '4,

E. L. GRAIGMILE SV STENOGRAPHIGTYPB' WRITING MACHINE.

No. 496,297. Patented Apr. 25, 1893.

a WM .351, @anm m: minms Pmns 00., FHIOTO-UIHQ. wAsummou. n, c.

(No Model.) SSheets-Sheet 5.

. E. L. GRAIGMILES.

STENOGRAPHIO TYPE WRITING MACHINE.

No. 496,297. Patented Apr. 25, 1893.

' 95, %& flttcmeqagl THE Numus mans co. mmau'rum, WASNINGTON, u c

(No Model.) -s Sheets-Sheet 6.

E. L. CRAIGMILES'.

STIENOGRAPHIG TYPE WRITING MACHINE.

No. 496,297; Paterited Apr. 25, 1893.

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(No Model.) 8 Sheets-Sheet 8,

. E. L. GRAIGMILES.

STENOGRAPHIG TYPE WRITING MACHINE.

No. 496,297. PatentedApr. 25, 1893,

UNITED STATES PATENT OFFICE.

EDWIN LEE ORAIGMILES, OF OHATTANOOGA, TENNESSEE,

STENOGRAPHIC TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 496,297, dated April25, 1893.

Application filed May 14, 1892. Serial No. 433,019. (No model.)

To all whom it may concern.-

. Be it known that I, EDWIN LEE CRAIGMILES, a citizen of the UnitedStates, residing at Chattanooga, in the county of Hamilton and State ofTennessee, have invented new and useful Improvements in StenographicType- Writing Machines, of which the following is a specification.

My invention relates to certain new and useful improvements intype-writing machines, and more particularly to that class denominatedstenographic machines, wherein the type-characters are adapted toimprint stenographic signs or symbols that indicate syllables orphonetic sounds or word symbols such as are usually employed in the artof stenography for rapidly recording speech or language; and theinvention has for its object to produce a machine of the kind referredto wherein the operation of recording such speech or language may begreatly facilitated so as to record the maximum number of words or signsin the least space of time and with a comparatively small exertion tothe operator.

With such ends in view my invention consists in the peculiar arrangementof the key levers in each of two separate and distinct sets or banks ashereinafter described whereby two keys in each set or bank may berespectively operated by a single finger to simultaneously imprintdouble characters, or be separately and independently operated toproduce single characters.

The invention further consists in improved mechanism for feeding a stripof paper from a continuous detachable roll; and in the automaticmechanism for feeding the paper upward at the end of each completedprinted line. Further, in automatic mechanism for imparting asuccessive, intermittent, or step by step movement to the paper carriagefor producing letter spaces; and in improved mechanism for producingword spaces.

The invention further, consists in means for automatically returning thepaper-carriage to its initial point at the completion of each printedline; and in providing means for returning the carriage to its initialposition to commence a new line at any time before the completion of anyparticular line of print.

The invention further consists in means or mechanism for actuating andshifting the inking ribbon; and in the construction, arrangement, andcombinations of parts more fully hereinafter described and claimed, duereference being had to the accompanying drawings, wherein- Figure 1represents a top plan view of my improved machine; and Fig. 2 an endview thereof. Fig. 3 is a vertical transverse central section of thesame, and Fig. 4 is adetail view indicating the carriage feed. Fig. 5 isa detail view illustrating the action of one of the type-bars; and Fig.6-is an end view of the paper carriage. Fig. 7 is a detail viewillustrating the means for throwing the carriage actuating mechanism outof gear by hand. Fig. 8 is a detail view of the'movable gear shown inFig. 7. Fig. 9 is a perspective view of one end of the platen shaft.Fig. 10 is a detail perspective view of the pawl or dog for actuatingthe platen-shaft. Fig. 11 is a detail view showing the parts illustratedby Figs. 9 and 10 in engagement. Fig. 12 is a plan view of the ribbonadvancing mechanism. Fig. 13 is a plan view of the mechanism forautomatically effecting the reversal of the ribbon. Fig. 13*" is adetail perspective view showing the means for operating the mechanismabove mentioned. Fig. 14 is a top plan view of the keys. Fig. 15 is adiagrammatic view showing the relative striking position of the typebars. Fig. 16 is an end view of the carriage, illustrating the mechanismfor actuating the carriage escapement shaft. Fig. 17 is a detail view inside elevation of the mechanism for shifting the ribbonjand Fig. 18 is adetail view of the latch for removably securing in place the shaftcarrying the paper roll. Figs. 19, 20 and 21 are views of a modificationof the feed for imparting a step by step motion to the paper carriage.

In order that my invention may be more readily understood I willdescribe the construction and operation of its different component partsseparately, and, in proper sequence, will describe the coaction of suchparts.

Reference being had to the drawings by the numerals and letters markedthereon 1 indicates the base of the frame of my improved machine fromthe rear end of which and near each side thereof project two verticalstandards 2, 3,

as shown in Fig. 4: of the drawings. Secured to said standards are twoguide bars t, 5, lying in the same vertical plane but arranged one abovethe other, and upon which the papercarriage travels. Said carriage isprovided at each end with vertical plates 6, 7, which are suitablyperforated to pass over the guide bars 4, 5, and between said platesisjourualed the platen cylinder 8, and a guide roller 9, the roller lyingin frictional contact with the platen 8.

The numeral 10 indicates the paper carrying roll upon which the paper iswound, and said roll is freely mounted upon a shaft 11, which at one endis journaled in a bearing in the standard 3, and at the other end isjournaled in an open socket 12, formed in the standard 1, and isretained therein by means of a spring-latch 13, (see Fig. 13,) which atits lower end is rigidly secured to said standard 1 and at its upper endis perforated and engages a pin 11 slightly projecting upward so as toretain said latch in its closed position. The end of the shaft isremoved from the socket 12, and the paper roll slipped thereon until itlies between the end plates (3 and 7 of the paper carriage; the shaft isthen slipped back into its socket 12 and the spring latch snapped overthe pin 14E securely holding the shaft in position. While the papercarrying roll is free to revolve upon the shaft 11 it is compelled totravel with the carriage owing to its being confined between the plates6 and '7. As the platen Sis revolved to produce line spaces, as willmore fully hereinafter appear, the paper is unwound from the roll 10 andpasses over said platen and between the same and the guide roll 9, andthence onto the rearwardly inclined table 15, by which it is conductedto the rear of the machine out of the way of the operating mechanism.

Before describing the feed mechanism for actuating the carriage toproduce letter and word spaces, and the mechanism for rotating theplaten and for producing line spaces, I will proceed to describe the keylevers in order that the coaction of these parts may be more readilyunderstood. Said key levers are arranged in two sets or seriescomprising a right and left hand set, and consisting of twenty levers,ten being ineach set, as shown in Fig. 11. Said levers at their rearends are pivoted to a bar 16 mounted in suitable supports at the rear ofthe base of the machine, and extend forward in a horizontal position tothe front of the machine. At suitable points, as 1.7 and 18, said leversare embraced upon each side by vertically arranged pins which serve toprevent any side movement of the levers while allowing them to have afree vertical movement. Between each key lever and the base 1, of themachine, is arranged a coiled spring 20 which throws said lever backinto its horizontal position after it has been depressed. The said keylevers are provided at their free ends with semicircular keys 21,eachpair of adjacent keys lying in close j uxtaposition and forming acircle, whereby thekeys forming any one of the pairs may be strucktogether to simultaneously print two characters or may be independentlystruck to form single characters, as hereinafter fully described. Toeach of the key levers in Fig. let is secured a wire 22, the other endof which is seen red to a type-bar 23, pivoted above it, the number oftype-bars being equal to the number of key levers. The type-bars 23 arepivoted at their forward ends toabar24c,prefer ably curved uponsubstantially the arc of a circle, and secured to suitable supports 25rising from the base 1, and near their pivoted rear ends are providedwith downwardly curved arms 26. Between the free ends of each of thearms 26 and a bar 27 secured to the supports 25,is disposed aspiralspring 28, one end of which is secured to said bar 27, and the other endto the free end of the arm 26, said springs serving to keep the typebars 23 in an elevated position. To the under side of the free ends ofthe type -bars 23 are socured the types 29, and it will be readilyunderstood that when any one of the key-levers is depressed itscorresponding type bar, through the medium of the wire 22, will also bedepressed, causing its type to strike the platen and leave itsimpression upon the pa per stretched over the same, an ink ribbon beinginterposed between the platen and types, as will hereinafter more fullyappear.

The types lettered from a to j imprint ten different characters, andthese characters are printed in six diiferent points 30, 31, 32, 33, 3eand 35, the types striking at different points on the convexity of theplaten, as shown in Fig. 15. To accomplish this, eight of the types havefour common striking points, that is to say, four of the types muststrike at the same points where four other of the types composing theset will strike, while the two remaining keys of the set will each haveits separate and distinct striking point. Thus, the typebar a strikes inthe plane 35, and no other type bar can strikein the same plane, whilethe type -bars I), and 0 both strike at the same point in the plane 31but imprint different characters. It will be manifest, therefore, thatthe keys actuating the key levers b and 0 cannot be struck at the sametime, but the keys actuating the key-levers a and Z), since thecorresponding types print in different planes, can be simultaneouslystruck and the two characters thus printed at the same time and by oneoperation. The keys which actuate the levers a and b are thereforearranged in close juxtaposition to form the first pair in the left handset. A similar arrangement prevails throughout the whole series; thusthe keys on the key-levers c and (l, c andf, g and h, and t' andj arearranged in pairs and the keys forming each pair can be simultaneouslystruck to produce two characters, but the keys on the key-bars Z) an dc, d and c, f and g and h and i cannot be struck together because thetypes actuated by each pair of keys as thus enumerated strike at thesame point. The type on the bar j like the type on the bar a has its owndistinct point of striking, and hence the key which actuates it likethat of a can be struck in conjunction with any other key of the series.The adjacent keys forming each pair in the series can be simultaneouslydepressed thus enabling the operator by the use of a single finger tomake a combination character consisting of two different marks, or twofingers can be used to simultaneously strike four keysin the series. Itwill be readily seen that almost any four characters in the stenographicsystem written by this machine can be printed at once and from differentcombinations of these ten characters is formed the alphabet.

Instead of making the keys semi-circular they may be made of any desiredshape, it always being preferable that they be of such shape that theadjoining edges of each pair shall lie in close juxtaposition. The keys,key-levers, types and type-bars forming the set upon the right side ofthe machine are duplicates of those just described, each set beingcapable of printing the alphabet alone. The two sets, however, print indifferent vertical planes, the left hand set printing on the left of amedian line 36, while the right hand set prints on the right thereof,and thus it is possible to depress ;any type or combination of types inthe left hand set and at the same time depress any desired type orcombination of types in the right hand set, and by this meanssimultaneously print two characters comprising a word. For example theproper key to print the letter i may be selected from the left hand setand the propel-key for printing the letter 11 may be selected from theright hand set, and both keys struck simultaneously to print the wordin. By reference to Fig. 1 of the drawings it will be observed that thekey levers and keys are arranged in such manner that when the fingers ofthe two hands are spread in a natural position they will fall directlyover the keys in' convenient position for their manipulation, making itunnecessary for the operator to change the position of his hands.

In addition to the key levers the machine is provided with a spacinglever and a lever for returning the carriage to its original position tostart a new line, asshown in Figs. 1, 2 and 3. Referring to Fig. 1, thenumeral 37 indicates the spacing lever which like the key-leversispivoted to the bar16,and guided between vertical pins 19, a coiledspring 20 being disposed beneath said lever to raise it to a horizontal.position after it has been depressed. The free end of the lever 37extends beyond the ends of the key levers and is elevated above theplane of said levers and provided with a broad key 38, in order that itmay be depressed by the wrist and thus avoid the necessity of theoperator changing the position of his handover the other keys of therighthand set to make a word space. The spacing lever 37 is arranged inthe right hand set of key-levers, as shown. Arranged in the left handset of key-levers is a carriage return lever actuated by the key 39similar in all respects to the spacing lever 37, but designed to effectthe return of the paper carriage to start a new line.

Before describing the operation of said levers it will be necessary todescribe the means for feeding the carriage forward and the mechanismfor returning the same to its starting point, which I will now proceedto do. J ournaled in the standards 2 and 3 is a cylinder 40 providedupon its periphery for onehalfv its length with a series of step-liketeeth or notches 41 which are disposed spirally around the cylinder, asshown in Fig. 4. That portion 42 of thecylinder which has a smoothperiphery is of less diameter than the toothed portion, and will behereinafter explained. Each end of the cylinder has rigidly securedthereto a ratchet wheel, respectively marked 43 and 44, and to thestandards 2 and 3 are respectively secured pawls 45 and 46 which engagethe said ratchet wheels and permit of the rotation of the cylinder 40 inbut one direction.

Referring to Fig. 4 which is a rear elevation of the paper carriage, thedriving mechanism, and main frame, 45indicates a flat bar which isrigidly secured to the bottom and rear of the end frames 6 and 7 of thepaper carriage, one end 46 thereof projecting slightly beyond the endframe 6 and provided with an aperture 47 for the purpose to be presentlydescribed. Resting upon said bar 45 is a sliding bar 48 which passesthrough suitable perforations in the end frames 6 and 7 of the papercarriage and projects beyond'the same. The end 49 of the bar 48is'provided with an elongated slot 50 which is adapted to register withthe aperture 47 in the bar 45 and the top of the bar 48 upon both sidesof said slot is cut to form an inclined notch 51. Through the slot 50and aperture 47 passes a dog 52 provided with a head 53 inclined in itsbottom to correspond to the inclined notch 51, and the side of said dog52 next the paper carriage is inclined, while the opposite side isvertical in order to afford a pointed end to engage the teeth 41 on thecylinder 40, as will hereinafter appear. Upon the top of the dog 52rests one end of a spring 54 which constantly exerts its force to presssaid dog downward into the notches formed by the teeth 41. W hen,however, the bar 48 is moved in the proper direction to cause theinclined notch 51 to bear against the lower inclined side of the head 53of the dog 52, said dog is raised to clear the notches formed by theteeth 41. To one side and to the rear of the main frame 1 are securedsuitable supports 55, within which is journaled a grooved pulley 56within which is arranged a coiled spring which in unwindingtends toconstantly draw the carriage in direction of the arrow 57, (Fig. 4), astrap or cord 58 being wound about said pulley and secured at its otherend to the paper carriage. The spring herein mentioned is preciselysimilar to the springs used for a like purpose in most type-writingmachines now in common use and needs no further description.

I will now proceed to describe the mechanism by means of which the stepby step movement of the carriage is produced to form the letter and wordspaces. From the description heretofore set forth relating to the actionof the key-levers forming the right and left hand series of keys, itwill be evident that if two keys are struck simultaneously to producetwo characters side by side, the paper carriage will have to move thewidth of two types as the types return from contact with the paper; butif only a single key or combination of keys be struck by the right handset of keys the paper carriage would only be required to move the widthof one type. It will be evident then that the depression of any key inthe right hand set must move the carriage the width of one type and thedepression of any key in the left hand set must move the carriage thewidth of two types. This is accomplised in the manner and by the meansnew to be described. 011 either side of the machine and outside of thestandards 2 and 3 are respectively pivoted at the points 60 the levers61 and 62, the lever 61 being about twice the length of lever 62, andpivoted at about its center, while the lever 62 is pivoted near its end.Midway between the right and left hand sets of key-levers is a lever 63similar in all respects to the lever 61 and pivoted at a point in linewith the pivoted points 60 to the base 1 of the machine. The levers 61and 63 at their outer ends are united by a crossbar Cl which rests underthe left-hand series of key-levers while the short lever 62 is united tothe lever 03, near the center of the latter by a cross-bar which restsunder the key levers in the right hand series. The three levers (51, 62and 63 are connected at their inner ends to the base 1 of the machine byspiral springs 66 which constantly exert their force to keep said endsdepressed. To the ends of the levers 61 and 62 are pivoted pawls 67 theupper ends of which engage the ratchet wheels 43 and 44 secured upon theends of the cylinder 40 as heretofore described, and upon the depressionof said levers rotate the ratchet wheels, and of course the cylinder, inthe direction of the arrow, Fig. 2. As the cross bars 64 and (35 restunder the key-levers, as described, it will be evident that depressingany one of the key levers in either set will also depress the outer endsof the levers 61 and 62 and of course elevate their inner ends. Butinasmuch as the bar 64 strikes the key-levers of the left hand set at apoint further from their f ulcru msthan does thebar 65 from the fulcrums of the key-levers of the right hand set the bar (it will bedepressed a greater distance than the bar 65 upon an equal depression ofthe key-levers of the two sets and therefore the inner ends of thelevers 61 and 62 will likewise be elevated an unequal distance, causingthe pawls 67 to engage an unequal number of teeth on the ratchet wheels43 and 44-. The levers 61 and 62 will, in practice, be so proportionedand their fulcrums 60 so placed that the inner end of the lever 61 willbe raised twice the distance of the inner end of the lever 62 and therelative arrangement of the ratchet wheels 43 and 4.4 and the pawls 67will be such that the pawl will engage two teeth on the ratchet wheel Mand but one tooth on the ratchet wheel l3 upon movement of the lovers.As the inner ends of either of the levers 61 or 62 are raised by thedepression of one of the keylevers the pawls 67 step over the teeth onthe ratchet Wheels 43 and 44, the pawl engaging the ratchet wheel l4cslipping over two teeth while that engaging the ratchet wheel 43slipping over but one, as before described, and upon the release of thekey-lever the spring 66 immediately draws down the inner end of one ofsaid levers and with it one of the pawls 67 which turns the cylinder thedistance to produce a space equal to one or two types according to whichset the key-bar which has been struck belongs to. If the cylinder 40 beturned a sufficient distance to produce two type spaces two of the teeth41 will be rotated out of the path of the dog 52, and the spring-pulley56 will immediately draw the paper carriage forward the requireddistance until the said dog strikes the next tooth in the spiral series4.1 by which further movement of the carriage is prevented until anotherkey is depressed. On the other hand if the cylinder 40 has been rotatedthrough the medium of the lever 62 but one of the teeth 41 Will havebeen removed from the path of the dog 52, and consequently the papercarriage will have advanced but the width of one type. At the time thekey-lever was depressed that operated as above described to rotate thecylininder 40, and before the cylinder was so op erated, said key lever,by means of the wire 22, had drawn down its corresponding type bar 23 tocause the type carried at the end thereof to strike the paper on thepaper platen and imprint its character, and it is only after suchcharacter has been imprinted and the key lever is being returned to itsoriginal position by its spring that either of the lovers 61 or 62 canoperate to rotate the cylinder to permit the carriage to move forward.

As above described there is only one series of spiral notches on thecylinder 40 which extend around said cylinder once, the cylinder makinga complete revolution while the carriage is moving the space of oneline. I may however make the cylinder 40 in two, three or more sections,as shown in Figs. 19, 20 and 21 and provide each section with a row ofspiral notches etl, which only extend around one-half, one-third, orone-fourth of the cir- IIO the dog 52 from engagement with the notches,

for it will be seen that when the dog has reached the last notch of oneof the series of notches, or is at any point of its journey, it

will have an unobstructed passage back to the starting point. For thisreason, it is pre-, ferred that the dog 52 may be fixed. In operation,it will be evident that the first notch of a section shall exactlyregister with the dog 52 at the commencement of each line.

Referring to Figs. 19, 20 and 21, a indicates apawl the free end ofwhich is adapted to engage the free end of the cylinder 40 and at itsother end is secured to an arm I) which rests beneath and is adapted tobe engaged by the carriage. A spring 0 is secured to said arm I) andexerts its force to constantly draw the pawl to its lowermost position.As the carriage is returned to the starting point it bears against andforces down the free end of the arm I), thus raising the pawl a, and theend of said pawl coming in contact with one of the notches on the end ofthe cylinder 40 shown in Fig. 21, each one of which registers exactlywith the first notch of one of the sections on the cylinder 40, forcesit upward and thus rotates the cylinder 40 the distance required tocommencea new line. As the end of the arm I) is released by thecarriage, the spring 0 operates to draw down the pawl a ready to againperform its work when the carriage is again returned. This result Willfollow every time the carriage is returned to the starting point,whether the carriage is returned by hand or returned automatically aftercompleting a full printed line. I desire, however, to say in thisrespect that I am not bound to proportion the parts so the pawl 011 thelever 62 will move the cylinder 40 the width of one type and the pawl onthe lever 61 will move it the width of two types. The arrangement may bereversed, so as to cause, for instance the long arm of the universalbar, 64, to be under the right-hand set of keys,

and its short arm, 65, under the left hand set,

so that the depression of any key in the right hand set will cause thecarriage to move the width of three types, and the depression of any keyin the left hand set will cause it to move the width of two types; or itmay be changed in this respect in any preferred manner so that through auniversal bar having two arms of unequal length the depression of anykey in one set of key levers will cause the paper carriage to be moved acertain distance and an equal depression of any key in the other setwill move the paper carriage another and a different distance.

The mechanism for returning the carriage to its starting point is asfollows: As before described only one-half of the cylinder 40 is rangedupon the cylinder 40 near its outer end is a beveled gear wheel 68. Saidgear wheel 68 is not rigidly attached to the cylinder (see Fig. 8) butis provided with a feather 68 which engages a groove 69 in thecylinder,-thus permittingalongitudinal movement of the gear wheel uponthe cylinder but compelling it to revolve therewith. Loosely embracingboth sides of the gear wheel 68 is a clutch 70 carried at one end of ashifting bar 71 mounted in suitable bearings and projecting through thestandard 2. Meshing with the gear wheel 68 is a similar gear wheel 72the two being arranged at right angles to each other. a The gear wheel72 is rigidly mounted on a shaft 73 rotating in bearings74, and upon theopposite end of said shaftis rigidly secured a gear-wheel 75. The gearwheel 75 meshes with the under side of a rack-bar 76 which travels inguide ways 77 secured to the standard 2, the inner end of said rack-barbeing secured to the end frame 7 of the paper carriage. Journaled insuitable supports 78 secured to the guideway 77 is a grooved pulley 79provided with a coiled spring 77 which exerts its force to rotate thepulleyin the direction of the arrow 80. This pulley is similarinconstruction to the pulley 56 before described, but the force of itsspring exceeds that of the spring actuating the pulley 56 which drawsthe paper carriage forward. Secured by one end to the periphery of thegrooved pulley 79 is a strap or cord 81, the other end of which isattached to a pin 82 fastened near the inner end of the rack-bar. Theshifting bar 71, before named, is provided near each end with upwardlyprojecting pins 83 and 84: which are adapted to be engaged by the papercarriage for the purpose presently to be described, and at any suitablepoint is provided upon its side with two notches 85 and 86. To a support87 which serves as rest for the end of the shifting-bar 71 is securedone end of a spring 88, the other end of the spring being bent to form aprojection 89 which engages the notches 85 and 86 and serves to hold theshifting bar 71 against accidental displacement. A pin 90 projectsupwardly from the base 1 0f the machine and bears against the spring 88,thus keeping the free end of said spring constantly in contact with theshifting bar 71. The operation of this portion of the machine is asfollows: As before described, when a key is depressed it revolves thecylinder 40 and the spring-pulley 56 draws forward the paper carriageone or two notches, according to which set the key belongs. As thecylinder and the latter meshing with the rack-bar moves it forward withthe carriage. As the rack-bar 7G is moved forward it carries with it thestrap or cord 81 which is secured to the periphery of the spring pulley79, thus unwinding the spring of said pulley. As before described theforce of said spring exceeds the force of the spring in pulley 56 andtends to draw the carriage in a direction opposite to the pull of thepulley 56,but by means of the gearing between the cylinder 40 and rackbar 70 the stronger spring of the pulley 79 is unwound and its forceprevented from acting on the paper carriage untilit reaches the end of aline, when it is automatically permitted to exert its greater force and,overcoming the weaker spring of the pulley 59 returns the carriage toits starting point, as will be now described. As the paper carriagenears the end of a line it comes in contact with the pin 83;; on the endof the shifting bar 71, and as the carriage continues to move forward itcarries with it the said shifting bar 71. As the shifting bar is movedforward by the carriage it shifts the clutch 70 which moves the beveledgear-wheel GSlengitudinally in thegroove G9 in the cylinder t0" andthrows it out of gear with the beveled gear wheel 72, releasing thelatter from all restraint. The spring pulley 79 then acts to exert itssuperior strength and, rotating in the direction of the arrow winds upthe strap or cord 81 which is attached to the rack bar 7 G and drawsback said bar and with it the carriage. However, before the carriage canreturn to commence a new line the dog 52 resting in the notches formedby the teeth -11 on the cylinder 4:0 must be raised to clear saidnotches, which is eifccted automatically as follows: As beforedescribed, and asshown in Fig. 4-, the end of the sliding bar 18projects beyond the standard 0. At the same moment that the end of thepaper carriage strikes the pin 83 on the shifting bar 71 to throw out ofgear the beveled gear wheels 68 and 72, the end of the sliding bar asstrikes the standard 3 and as the carriage continues to move forward thesliding bar a8 is forced backward, pressing the inclined notch 51 underthe head of the dog 52 and raising said dog out of the notches on thecylinder. The dog 52 is raised clear of the notches at the same instantthat the two beveled gear wheels 68 and 72 are disconnected or ungeared,and the spring pulley 79 is then permitted by the ungearing of saidwheels to exert its force and the carriage starts to return to commencea new line. As the carriage nears the completion of its re turn journeyits advancing end strikes against the pin 81 on the end of the shift ingbar 71 and as the carriage continues its movement toward the startingpoint the shifting bar 71 is carried with it, throwing into gear thebeveled gears 08 and 72. By the time the gear-wheels have beencompletely geared together the carriage has reached the end of thereturn journey. At the same moment the carriage strikes against the pin84:, as above described, the projecting end of the sliding bar 48 comesinto contact with the standard 2, and as the carriage continues on itsreturn journey the sliding bar 48 is forced inward to the formerposition, allowing the dog 52 to drop into the notches on the cylinder&0, the spring 54 serving to force the dog down. The sliding bar 131 isprovided with a spring locking device 137 similar in all re spects tothe spring locking device 88 on the shifting bar 71, and it willtherefore need no further description. As above described the carriageis automatically returned to the starting point when the endof alineisreachcd, but it often happens that the carriage must be returnedbefore the completion of a line, and this is accomplished by depressingthe lever 39 by the left wrist of the operator. Projecting horizontallyfrom near the center of the shifting bar71, as shown in Fig. 7, is a pin91. Against this pin bears the upper end of a bell-crank lever 92,pivoted at 93 to an upright support 91 secured to the base of themachine. To the other end of the bellcrank key 92 is attached a wire 95secured at its other end to the inner end of the lever actuated by thekey 39. Then the key 39 is depressed by the left wrist its lever drawsdownward the wire 95 which causes the bell crank lever to oscillateforward on its pivot 93 and pushing against the pin 91,shifts theshifting bar 71 so as to ungear the beveled gear wheels 68 and 72. Thesliding bar 48 is shifted by hand to raise the dog 52 out of engagementwith the notches on the cylinder 10, when. the carriage is returned bythe spring pulley 79 to the starting point as already described. Afterthe paper carriage has been returned to its starting point it isnecessary that the paper be shifted upward over the platen cylinder 8before commencing to print a new line, and this is accomplished asfollows: Referring to Figs. 9, 8 indicates the right hand end of theplaten cylinder shaft which project-s through the end frame 7 of thepaper carriage. The outer end of said shaft is provided upon itsperiphery with a series of teeth 96, each of which is straight upon oneside, as at 97, and inclined upon the other side for a portion of itslength, as at 98, and straight for the remainder of its length, as at99. To the standard 2, at a point opposite the said teeth is secured aprojecting finger adapted to engage said teeth to rotate the platencylinder. Said finger is composed of two parts 101 and 102, the part 101being fixed and the part 102 being hinged thereto as at 103. The lowersides of the members 101 and 102 are straight and their upper sides areinclined, the end of 102 terminating in a point. Between the abuttingedges of the members 101 and 102 is interposed a spring 102, whichnormally maintains said members in the position shown in Fig. 10 in suchmanner that the upper sides of the two members form a continuousinclined plane and their lower sides form a slight angle. As thecarriage returns to its starting point, as before described, theinclined portion 98 of one of the teeth 96 comes in contact with thepointed end of the finger 100, and as the carriage continues itsmovement the inclined upper side of the said finger forces the tooth 96upward, thus partially rotating the platen cylinder and feeding thepaper upward from the'roll to receive a new line of imprints. Then thepointed end of the finger comes into contact with the straight side 97of the next adjacenttooth 96, the member 102 of the finger is pushedupward against the action of the spring so that when the end of theshaft 8 comes in contact with the standard 2 and the return of thecarriage to its starting point is completed the relative position of thetwo members 101 and 102 will be as shown in Fig. 11, their lower edgesforming a continuous straight line which abuts against the straight sideof one of the teeth 96 and their upper inclined edges showing a slightangle, and the members 101 and 102 will remain in this position untilthe paper carriage has moved forward far enough in printing a new lineto release the pointed end of the finger from contact with the teeth 96,when the spring restores the two members to the position shown in Fig.10, ready to engage the teeth 96 when the paper carriage is againreturned. To the opposite end of the platen-cylinder'shaft 8 outside ofthe standard 6 is rigidly secured a ratchet wheel 104, and secured tosaid standard is a pawl 105 which engages said ratchet wheel andprevents any backward movement of said cylinder. 7

It now remains to describe the mechanism for shifting the ink-ribbonback and forth from over the platen cylinder and for feeding it fromside to side, and for reversing the direction of the feed. Mounted insuitable bearings 106 secured to each side of the base of the machineare rolls 107 and 108, about which the ends of the ink ribbon 109 arewound. The ribbon 109 passes up over a roller 110 mounted in bearingsupon the top of the standard 3 and from thence passes in front of theplaten cylinder 8 to the other side of the machine over a roller 111,similar to the roller 110 and thence to the ribbon roll 108. When themachine is at rest the ribbon 109 as above described passes immediatelyin front of the cylinder 8 over which the paper passes and whichreceives the impact of the type in printing, as shown in Fig. 12. At thepoint where the ribbon passes in front of the cylinder it passes througha ribbon-guide constructed as follows: 112 indicates a shallow box-likecasing consisting of a bottom 113 having its opposite edges 114 turnedup and over toward each other to embrace the ribbon 109. To the frontouter corners ofsaid casin g 112 are hinged at 115 similar casings 116and 117 of greater length than the casing 112, which in turn are hingedat their rear inner corners to similar short casings 118 and 119,

the latter sliding on suitable supports. The central guide casing 112 isprovided at its bottom with a square aperture 120 of a sufficient sizeto permit of the passage of the type, but preventing any other portionof the ribbon coming in contact with and soiling the paper. To the frontend of the central guidecasing 112 is secured one end of a bell-cranklever 121 pivoted to a fixed support 122 secured to the base of themachine, the other end of said lever having attached thereto 'a wire-rod123, the other end of said rod being attached to the lever 63 of thespacing device before described. The lever 63 is moved an equal distanceupon the depression of any one of the twenty key-levers, and as one ofsaid key-levers is depressed it presses down the free end of the lever63 and draws down the rod 123 which turns the bell-crank lever 121 uponits pivot or axis and throws the central guide-casing 112 over theplaten-cyl inder in the position shown in dotted lines Figs. 12 and 17.When the key-lever was depressed it caused the type carried by thetypebar to descend, as before described, striking the ribbon whichpasses over the central guide casing 112 the instant that the latter hascompleted its forward movement. The type presses the ribbon through theaperture 120 in the central guide-casing 112 down-into the paper on thecylinder 8, thus imprinting its character thereon. Then the key-lever isreleased it is returned to its original position by the action of itsspring 20, thus releasing the lever 63 of any downward pressure, whichis returned to its normal position by its spring 66, and in its returnit raises the rod 123 which turns the bell-crank lever upon its pivotand draws the guide-casing 112 back from over the cylinder, thusexposing to view the matter printed. Thus, every time akeylever isdepressed the ribbon advances to a position over the cylinder and whenthe keylever is released it recedes to expose the character lastprinted. By inclosing it in the hinged guide casings as described, sharpturns in the ribbon are avoided. If the guide casings 116 and 117 wereomitted the central guide 112 would carry the ribbon forward at sharpangles, but by providing said guidecasings the ribbon is deflectedgradually. As before described the ends of the ribbon are wound aboutthe spools 107 and 108. To the rear ends of the shafts of the ribbonspools 107 and 108 are respectively secured beveled gear wheels 124 and125 which revolve with said shafts. The cylinder 40 is extended at eachend beyond the standards 2 and 3, as at 126 and 127, upon which aremounted beveled gear wheels 128 and 129. Said gear-wheels are eachprovided with feathers which engage longitudinal grooves which permitsaid wheels to be moved longitudinally upon the shafts 126 and 127 butcause the wheels to revolve with the shafts. Embracing the gear wheels128 and 129 on both sidesare clutches 131 and 132 which are carried byrods 133 the ends of which are attached to a shifting bar 134. hen oneof the gear wheels, as 128, is in gear with one of the gear wheels as124, on the ends of the spool shafts (as in Fig.

1) the cylinder shaft 127 will, through the.

said gears, rotate the ribbon spool 108 and wind the ribbon on saidspool 108, the gear wheels 125 and 129 not being in mesh, thus allowingthe ribbon to unwind from the spool 107. By moving the shifting bar 134in the proper direction the clutch 132 throws the gear wheel 128 out ofgear with the gear wheel 124, and at the same time the clutch 131 throwsthe gear wheel 129 into gear with the gear wheel 125, thus causing theribbon to be reversed and wound on the spool 107 and off of 108. Theshifting bar 134 rests upon suitable supports 135 secured to the base ofthe machine, and at a suitable point is notched, as at 136, said notchesbeing engaged by the free end of a spring 137 in the manner and for thepurpose heretofore described.

In order to reverse the ribbon automatically the following describedmechanism is resorted to: On the cylinder 40, at the end of its toothedhalf is rigidly secured a beveled gearwheel 138 which meshes with asimilar beveled gear-wheel 139 rigidly secured to one end of a shaft 140mounted in suitable bearings 141 secured to the base of the machine.Rigidly secured to the other end of the shaft 140 is a large wheel 142which is supported immediately above the shifting bar 134. Projectingfrom the periphery of the wheel 142, and opposite each other, are twopins or tappets 143 and 144, as clearly shown in Figs. 3 and 13. Throughthe shifting bar 134 and at a point immediately beneath the center ofthe Wheel 142 passes a pin 145 which projects upon both sides of saidshifting bar. To a suitable support 146 is pivoted near its upper end alever 147 the lower end of which is adapted to engage one end of the pin145 and its other end adapted to be engaged by the pin 144 on the wheel142. Opposite the support 146 is arranged a similar support 148, the twobeing a sufficient distance apart to permit the passage of the pin 145between them. To said support is pivoted near its upper end a lever 149while below the same is pivoted a similar lever 150. The adjacent endsof the levers 149 and 150 bear one against the other While the upper endof the lever 149 is adapted to be engaged by the pin 143 on the wheel142 and the lower end of the lever 150 is adapted to engage the pin 145on the shifting bar. Upon the opposite lower sides of the levers 147 and150 bear the free ends of the springs 151 and 152 the opposite ends ofwhich are secured to the base 1 of the machine. As the wheel 142revolves in the direction of the arrow the pin 144 comes into contactwith the upper end of the lever 147 which is thereby pushed forward.This forces the lower end of said lever against the spring 151. hen thewheel 142 has revolved sufficiently to cause the pin 144 to escape overthe top of the lever 147 said lever is immediately released and thespring 151 exerts its power to force the lower end of the lever withviolence against the pin 145 knocking the 'pin, and hence the shiftingbar 134, forward and thus throwing the gear wheel 128 into gear with thegear wheel 124 which causes the ribbon to be wound on the ribbon spool108 as before described. As the wheel 142 continues to revolve it bringsthe pin 143 into engagement with the upper end of the lever 149, pushingthe upper end of said lever forward. The lower end of the lever 149engages the upper end of the lever 150 and causes the lower end of thelatter lever to press back the spring 152 until the wheel in itscontinued revolution disengages the upper end of the lever 149 uponwhich the spring causes the lower end of the lever 150 to also strikeviolently against the pin 145, driving the shifting bar 134 in adirection opposite to that before described, and causing the ribbon tobe Wound upon the ribbon-spool 107.

The levers 147, 149 and 150 are employed for the purpose of convertingthe very slow motion of the Wheel pins 143 and 144 into a quick motionof the shifting bar through the medium of the springs 151 and 152, asthe reversal of the ribbon spools must be effected rapidly, and for thesame reason the levers are pivoted near their upper ends so that a smallmovement of the shorter arms of the levers will produce a much greatermovement of the longer arms thereof.

It will be manifest that my improved machine is not exclusively adaptedfor use as a stenographic machine, for by changing the type andkey-board itcould be equally as well employed as a type-writer. I alsowish to state that I am not confined to the exact and minor details ofconstruction shown and described, as they in most every instance couldbe very readily changed and altered without departing from the scopeintended.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In a typewriting machine, the combination of the paper carriage, theplaten cylinder, two groups of keys, key-levers and type-bars, the saidkeys in each group being arranged in pairs in the manner described andthe said type bars of the two groups being adapted and arranged tosimultaneously print their characters in different vertical planeswhilethe types in each group are adapted to print their characters atdifferent points on the convexity of the platen, and a variable feedmechanism, arranged and operated in the manner described, whereby thepaper carriage is fed forward a different distance by depression of thekeysin the two groups, substantially as specified.

2. In a typewriting machine, the combination with the standards 2, 3,the guide bars 4, 5, connecting the same, the paper carriage travelingon said bars and provided with a notches, said cylinder beingintermittently rotated by the key levers, a spring actuated dog carriedby the carriage and engaging said notches, means for disengagingsaid'dog from the notches, and a spring actuated pulley for advancingthe carriage, substantially as described and for the purpose specified.

4. In a typewriting machine, the combination with the standards 2, 3,and the paper carriage traveling between the same, of the cylinder 40,journaled in said standards and provided with a series of spirallyarranged notches said cylinder beingintermittently' rotated by the keylevers, a spring actuated clog carried by the carriage and engaging saidnotches, means for automatically disengaging said dog from the notchesupon the completion of a printed line, and a spring actuated pulley foradvancing the carriage substantially as described and for the purposespeci-' 5. In a type writing machine, the combination with the papercarriage, of the cylinder 40 made in sections each of which is providedwith a series of spirally arranged notches a dog carried by the carriageand engaging said tion with the standards 2, 3, and the paper carriagetraveling between the same, of the cylinder 40 journaled in saidstandards and provided with a series of spirally arranged notches, a dogcarried by the carriage and adapted to engage. said notches, the keylevers, a universal bar arranged under thekey levers, a pawl and ratchetmechanism connected with said cylinder and universal bar, and a springactuated pulley for advancing the carriage, substantially as describedand for'the purpose specified.

7. In a typewriting machine, the combination with the standards 2, 3,and the paper carriage traveling between the same, of the cylinder 40,journaled in saidstandards and provided with a series of spirallyarranged notches, ratchet wheels secured to the opposite ends of saidcylinder, the pivoted universal bar resting under the key-levers andcarrying pawls engaging the said ratchet wheels, springs for depressingthe rear ends of said universal bar, a dog carried by the carriage andengagingthe notches onthe cylinder, and a spring actuated pulley foradvaricing the carriage, substantially as described and for the purposespecified.

8. In a typewriting machine, the combina-,

tien with the standards 2, 3, and the paper carriage traveling betweenthe same, of the cylinder 40, journaled in said standards and providedwith a series of spirally arranged notches, ratchet wheels secured tothe opposite ends of said cylinder, the pivoted universal bar restingunder the key levers and carrying pawls engaging the said ratchetwheels, springs for depressing the rear ends of said universal bar, adog carried by the carriage and engaging the notches on the cylinder, aspring actuated pulley for advancing the carriage and a spring actuatedpulley for returning the same, substantially as described and for thepurpose specified.

.9. In atypewriting machine, provided with two groups of keys, thecombination with the standards 2, 3, and the paper carriage travelingbetween the same, of the cylinder 40, journaled in said standards andprovided with a series of spirally arranged notches, ratchet wheelssecured to the opposite ends of said cylinder, the pivoted levers 61,62, and 63, the levers 61, and 62, beingof unequal length, thecross-bars 64, 65, uniting the. free ends of said levers and restingrespectively under the two groups of key levers, the pawls 67, carriedby the rear ends of said levers and engaging the said ratchet wheels,the springs 66, for depressing said levers, a dog carried by thecarriage and engaging the notches on the cylinder, and a spring actuatedpulley for advancing the carriage, substantially as described and forthe purpose specified.

10. In a typewriting machine, the combination with the main frame andtraveling paper carriage of a spring actuated pulley 56, connected by acord or strap to the carriage and operating to advance the same, aspring actuated pulley 79, of greater power thanthe pulley 56, andalsoconnected to the carriage by a cord or strap and operating to return thecarriage, the cylinder 40, journaled. in the main frame andintermittently rotated by the key levers and provided with mechanism topermit the pulley- 56, to advance the carriage step by step as saidcylinder is rotated, arack bar secured to the carriage, gearing drivenby the cylinder and meshing with said rack bar to release the carriageas the cylinder is rotated, and a clutch for throwingsaid gearing out ofmesh to permit the pulley 7 9, to return the carriage upon its releasefrom the cylinder, substantially as described.

11. In a typewriting machine, the combination with the main frame andtraveling paper carriage, of a spring actuated pulley 56, con? nected bya cord or strap to the carriage and operating to advance the same, aspring actuated pulley 79, of greater power than the pulley 56, and alsoconnected to the carriage by a cord or strap and operating to return theIIO carriage, the shaft 40, journaled in the main frame andintermittently rotated by the key levers and provided with mechanism topermit the pulley 56 to advance the carriage step by step as saidcylinder is rotated, the rack bar 76, secured to the carriage, ashifting beveled gear wheel 68, mounted on said cylinder a beveled gearwheel 72, meshing with said gear wheel, a driving gear wheel meshingwith the rack bar, and a clutch for throwing the wheels 68, and 72, inand out of gear, substantially as described and for the purposespecified.

12. In a typewriting machine, the combination with the main frame andtraveling paper carriage, of the spring actuated pulleys 56, and 79, ofunequal power and operating to move the carriage in opposite directions,the cylinder 40, journaled in the main frame and intermittently rotatedby the key levers and provided with mechanism to permit the pulley 56,to advance the carriage step by step as said cylinder is rotated, therack bar 76, secured to the carriage, a shifting gear wheel 68, mountedon the cylinder, gearing interposed between said gear wheel and rack barto move the latter, a clutch .70, adapted to throw the gear wheel 68 outof mesh with said gearing, and a shifting bar 71, connected with saidclutch and provided near its opposite ends with projecting pins 83 and84, adapted to be engaged by the carriage as it approaches either end ofits journey and thus automatically operate the clutch to throw the wheel68, in and out of gear, substantially as described and for the purposespecified.

13. In a typewriting machine, the combination with the main frame andtraveling paper carriage, of spring actuated pulleys 56, and 79, ofunequal power and operating to move the carriage in opposite directions,the cylinder 40, journaled in the main frame and intermittently rotatedby the key levers and provided with mechanism to permit the pulley 56,to advance the carriage step by step as said cylinder is rotated, therack bar 76, secured to the carriage,a shifting gear wheel 68, mountedon the cylinder, gearing interposed between said gear wheel and rack barto move the latter, a clutch 7 0, adapted to throw the gear wheel 68 outof mesh with said gearing, and a shifting bar 71, connected with saidclutch and provided near its opposite ends with projecting pins 83 and84, adapted to be engaged by the carriage as it approaches either end ofits journey and thus automatically operate the clutch to throw the wheel68, in and out of gear, and a spring 88, provided at its free end with aprojection 89, adapted to engage notches 85, and S6, in the shifting barand hold the same against accidental movement, substantially asdescribed and for the purpose specified.

1a. In a typewriting machine, the combination with the main frame andtraveling paper carriage, of the spring actuated pulleys 56, and 79, ofunequal power and operating to move the carriage in opposite directions,the cylinder 40, journaled in the main frame and intermittently rotatedby the key levers and provided with mechanism to permit the pulley 56,to advance the carriage step by step as said cylinder is rotated, therack bar 76, secured to the carriage, a shifting gear wheel 68, mountedon the cylinder, gearing interposed between said gear wheel and rack barto move the latter, a clutch 70, adapted to throw the gear wheel 68 outof mesh with said gearing, and a shifting bar 71, connected with saidclutch and provided near its opposite ends with projecting pins 83 and84:, adapted to be engaged by the carriage as it approaches either endof its journey and thus automatically operate the clutch to throw thewheel 68, out of gear, a pin 91 secured to and projecting from theshifting bar 71, near its center, a pivoted bell crank lever 92, one endof which engages said pin, and a wire 95, attached at one end to thelower arm of said bell crank and at the other end to the lever actuatedby the key 39 by means of which the wheel 68, is thrown out of gear byhand,substantially as described and for the purpose specified.

15. In a typewriting machine, the combination with the standards 2, 3,the paper carriage and feed mechanism, of the platen cylinder 8,journaled in the carriage and provided with a projecting shaft 8,beveled teeth 96, arranged upon the periphery of said shaft, and anoppositely beveled finger secured to the standard 2 and adapted toengage said beveled teeth as the carriage approaches said standard andautomatically impart a partial rotation to the platen cylinder,substantially as described and for the purpose specified.

16. In a typewriting machine, the combination with the standards 2, 3,the paper carriage and feed mechanism, of the platen cylinder 8,journaled in said carriage and provided with a projecting shaft 8,beveled teeth 96, arranged upon the periphery of said shaft, anoppositely beveled finger 100, secured to the standard 2 and adapted toengage said beveled teeth as the carriage approaches said standard andautomatically impart a partial rotation to the platen cylinder, aratchet wheel 104:, secured to the opposite end of said shaft 8, and apawl 105 engaging said ratchet wheel and preventing backward movementthereof, substantially as described.

17. In a type writing machine, the combination with the standards, 2, 3,the paper carriage and feed mechanism, of the platen cylinder S,journaled in said carriage and provided with a projecting shaft 8, teeth96 arranged upon the periphery of said shaft, said teeth having onestraight side, the other side being beveled for a portion of its lengthand straight for the remainder, a finger 100 adapted to engage saidteeth and consisting of a fixed member 101, and apointed member 102,hinged thereto, a spring interposed between said members, the uppersides of said finger,

when in their normal position, forming a continuous inclined straightline, and their lower sides forming an obtuse angle, a ratchet wheelsecured to the opposite end of the shaft and a pawl engaging the same,substantially as shown and described.

18. In a typewriting machine, the combination with the main frame andthe platen cylinder, of a ribbon guide composed of sections alternatelyhinged together upon opposite sides, and means for projecting thecentral hinged section over the platen cylinder as a key lever isdepressed and retracting the same upon the release of said key lever toexpose the printed character, substantially as described.

19. In a typewriting machine, the combina tion with the main frame andthe platen cylinder, of a ribbon guide composed of sections alternatelyhinged together upon opposite sides, the central section thereof beingprovided with an aperture through which the type imprint theircharacters, and means substantially as described, for projecting thecentral hinged section over the platen cylinder as a key lever isdepressed, and retracting the same upon the release of said key lever toexpose the printed character, substantially as described.

20. In atypewritin g machine, a ribbon guide consisting of rectangularstrips having overturned edges adapted to embrace the edges of theribbon, said sections being alternately hinged together upon oppositesides, substantially as described.

21. In a typewriting machine, a ribbon guide consisting of the guidecasings 112, 116, 117, 118 and 119, the two latter sliding in suitablebearings and the guides 116 and 117 hinged thereto at their rear innercorners and hinged at their forward outer corners to the central guide112, and means for automatically projecting the central guide over theplaten cylinder when a key lever is depressed and retracting the samewhen said lever is released, substantially as described.

22. In a ribbon guide for typewriters, the combination with the ribbonguide composed of sections alternately hinged together upon oppositesides, of the pivoted bell crank lever 121, one end of which is attachedto the central section of said guide, and a rod 123 at tached to theother end of said bell-crank lever, said rod being attached to the lever63 whereby upon depression of one of the key levers said guide isprojected over the platen cylinder, and upon the release of said keylever is retracted to expose the printed character, substantially asdescribed.

23. In a typewriter machine, the combination with the main frame, thecylinder 40, the ribbon spools 107 and 108 respectively provided withbeveled gear wheels 124 and 125,

and the beveled gear wheels 128 and 129 mounted upon the ends of saidcylinder and adapted to slide longitudinally thereon, of the clutches131 and'132 engaging said beveled gear wheels 128 and 129, a shiftingbar 134 common to both clutches, and a springbearing in contact withsaid shifting bar to prevent accidental movement thereof, substantiallyas shown and described.

24. In a typewriting machine, the combination with the main frame andthe cylinder 40, of the ribbon spools driven by shifting gears mountedon said cylinder, clutches engaging said gears, a shifting bar 134common to both clutches, and mechanism driven by said cylinder andactuating said shifting bar to periodically shift said gears and throwone ribbon spool into operation and the other spool out of operation,substantially as described.

25. In a typewriting machine, the combination with the main frame andcylinder 40, of the ribbon spools driven by gears mounted on saidcylinder, clutches engaging said gears, a shifting bar 134 common toboth clutches, a pin 145 projecting upon both sides of said shiftingbar, a wheel 142 receiving motion from the cylinder 40 and provided atopposite ends of its periphery'with pins 143 and 144, and springactuated levers adapted to be actuated by the pins 143 and 144 to strikethe pins 145 upon opposite sides to move the shifting bar 134 inopposite directions, substantially as described.

26. In a typewriting machine, the combination of the cylinder 40 andribbon spools, gearing driven by said cylinder and actuating saidspools, clutches for alternately throwing said gearing in and out ofconnection with the spools, a shifting bar 134 common to both clutches,a pin 145 projecting from opposite sides of said shifting bar, a wheel142 receiving motion from said cylinder and provided at opposite sidesof its periphery with pins 143 and 144, a pivoted lever 147 adapted tobe engaged at its upper end by the pin 144 and its lower end adapted toengage one side of the pin 145, a spring bearing against the lower endof said lever, the levers 149 and 150 engaging each other at theiradjacent ends, the pin 143 adapted to engage the upper end of the, lever149 andthe, lower end of the lever 150 engaging the pin 145, and aspring bearing against the lower end of said lever, all substantially asshown and for the purpose described.

In testimony whereof I have hereunto set my hand and affixed my seal inpresence of two subscribing witnesses.

EDWIN LEE ciiAIeintEs. [1.8.]

Witnesses:

CHAS. H. BAKER, W. A. MAHAFFEY.

